Two off-duty sheriff's deputies were working out at Hard Exercise Works when they said Daniel Amato, 40, came in, picked up an 18-pound kettleball, put it down and used a 5-pound plate instead to hit John Szarszewski, 25, in the face.

The deputies and several witnesses chased Amato into the parking lot, tackled him and said he refused to follow instructions.

The deputies used a stun gun, which they said was of no use.

Amato was subdued and taken to the Palm Beach County Jail on charges of aggravated battery with a deadly weapon and resisting arrest.

Szarszewski, who is the son of Palm Beach Deputy Police Chief Daniel Szarszewski, was taken to Delray Medical Center with broken facial bones and may face permanent disfigurement, according to an arrest report.

Witnesses said Amato attacked with no provocation.

Amato's estranged wife, Holly, used to work out at the gym, the arrest report stated.

State records indicated Amato runs a sports nutrition company in Wellington. He was also arrested on a charge of aggravated battery causing great bodily harm with a weapon in Aventura on July 3.

THE HOSPITAL IN CRITICAL CONDITION. SUSPECT RAN OFF AND POLICE ARE LOOKING FOR HIM. I MAN IN JAIL AFTER HE WALK INDEED A GYM AND BEAT A TRAINER IN THE FACE WITH A DUMB BELL FOR NO REASON. EXCLUSIVE STORY. THE VICTIM IS THE SON OF A LOCAL ASSISTANT POLICE CHOOE. THAT'S RIGHT. HE IS SON OF THE DEPUTY CHIEF. HE IS 25. DETECTIVES SAY AFTER THIS UNPROVOKED ATTACK WITH A GYM WEIGHT HE IS IN BAD SHAPE AND MAY BE FACING PERMANENT DISFIGUREMENT TO HIS FACE. THIS SAY PICTURE OF HIM BEFORE. HE IS A TRAINEE IN WELLINGTON. DETECTIVES SAID HE WAS LEADING A CLASS AT GYM WHEN THIS MAN 40 YEAR OLD CAME IN, PICKED UP A WEIGHT PUT IT DOWN AND SLAMMED HIM IN THE FACE WITH ANOTHER 5 POUND WEIGHT. 2 DEPUTIES WERE WORK OUT CHASED HIM AND TRIED TO USE A TASER ON HIM. THEY GOT HIM UNDER CONTROL AND TO JAIL. DETECTIVES SAY A MADDO THE SUSPECT ESTRANGED WIFE WORKED OUT AT THE JAIL. HE WAS ALSO ARRESTED WE FOUND IN %- MIAMI. JULY THIRD FOR AGGRAVATED BATTERY WITH A DAFRPGS WEAPON. HIS WIFE DECLINEED COMMENT. WE HAVE NOT HEARD FROM THE VICTIM'S FAMILY. A POLICE OFFICER IN PALM BEACH SAYS HE HEARD THAT IT IT IS